Equity (Rollforward) (Details 1)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
[CommonStockMember]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Outstanding at the beginning of the year	37,663,000	24,784,000	18,803,000
Issuance of common stock	8,625,000	11,531,000	4,638,000
Exercise of Stock Options	0	93,000	23,000
Conversion of preferred stock	0	914,000	572,000
Issuance of stock based compensation	403,000	341,000	748,000
Outstanding at the end of the year	46,691,000	37,663,000	24,784,000
[PreferredClassBMember]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Outstanding at the end of the year	20,000	20,000	20,000
[ConvertiblePreferredStockMember]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Outstanding at the beginning of the year	37,000	45,000	50,000
Conversion of preferred stock		900,000	600,000
Conversion to common stock	0	(8,000)	(5,000)
Redemptions	0	0	0
Outstanding at the end of the year	37,000	37,000	45,000
[TreasuryStockMember]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Outstanding at the beginning of the year	(72,000)	(72,000)	(72,000)
Purchase of treasury shares for stock vesting	0	0	0
Outstanding at the end of the year	(72,000)	(72,000)	(72,000)